In this image released by Google, a drone lowers a package to the ground in Queensland, Australia. The company is testing using drones to deliver items bought online. Two years of research into what Google referred to as "Project Wing" was capped last month with test flights delivering candy, water, medicine, dog treats and cattle vaccine. less

In this image released by Google, a drone lowers a package to the ground in Queensland, Australia. The company is testing using drones to deliver items bought online. Two years of research into what Google ... more

Photo: -, AFP/Getty Images

In this image released by Google, a drone lowers a package to the... Photo-6917175.94443 - SFGate

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In this image released by Google, a drone flies in Queensland, Australia. "Self-flying vehicles could open up entirely new approaches to moving goods," Mountain View-based Google said.

In this image released by Google, a drone flies in Queensland, Australia. "Self-flying vehicles could open up entirely new approaches to moving goods," Mountain View-based Google said.

Photo: -, AFP/Getty Images

In this image released by Google, a drone flies in Queensland,... Photo-6917176.94443 - SFGate

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In this image released by Google, an Australian farmer opens a package delivered by the Google drone. It contains dog treats.

In this image released by Google, an Australian farmer opens a package delivered by the Google drone. It contains dog treats.

Photo: Google

In this image released by Google, an Australian farmer opens a... Photo-6918014.94443 - SFGate

Last week, the Federal Aviation Administration granted six movie and TV production companies limited permission to use drones for filming. This image shows the eight rotor Sky Jib Helicopter by Aerial MOB, LLC., one of the six companies.

Last week, the Federal Aviation Administration granted six movie and TV production companies limited permission to use drones for filming. This image shows the eight rotor Sky Jib Helicopter by Aerial MOB,

This image provided by Aerial MOB, LLC, shows their eight rotor Sky Jib Helicopter in San Diego. The other five companies that can now use drones for filming are Astraeus Aerial, Helivideo Productions, Pictorvision, Snaproll Media and Vortex Aerial. less

This image provided by Aerial MOB, LLC, shows their eight rotor Sky Jib Helicopter in San Diego. The other five companies that can now use drones for filming are Astraeus Aerial, Helivideo Productions, ... more

Ryan Kunde, a winemaker at DRNK Wines in Sebastopol, prepares to launch a 3D Robotics Aero drone at Kunde Family Vineyards near Santa Rosa, Calif. Kunde said he flies his drones recreationally, but hopes one day to use the data they collect to help growers manage their crops once FAA rules allow it.

Ryan Kunde, a winemaker at DRNK Wines in Sebastopol, prepares to launch a 3D Robotics Aero drone at Kunde Family Vineyards near Santa Rosa, Calif. Kunde said he flies his drones recreationally, but hopes one

This picture taken on April 15, 2014 shows a man controlling a drone to spray pesticides on a farm in Bozhou, in central China's Anhui province.

This picture taken on April 15, 2014 shows a man controlling a drone to spray pesticides on a farm in Bozhou, in central China's Anhui province.

Photo: Str, AFP/Getty Images

This picture taken on April 15, 2014 shows a man controlling a... Photo-6174883.94443 - SFGate

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DHL is starting Germany's first ever drone package delivery service, a test program transporting medication to a pharmacy on a difficult-to-access North Sea island. The company said the quad-rotor “DHL Paketkopter 2.0” would begin daily flights last Friday to bring a maximum payload of 1.2 kilograms of medicine to the island of Juist. less

DHL is starting Germany's first ever drone package delivery service, a test program transporting medication to a pharmacy on a difficult-to-access North Sea island. The company said the quad-rotor “DHL ... more